# US 12,180,354 B2 · Polymer composition comprising a base polymer, an inorganic desiccant material, and an additive > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,180,354 B2 - Document ID: US12180354B2 - Status: Granted - Kind: B2 - Application number: 17/046,022 - Filed: 2019-03-28 - Published: 2021-02-04 - Granted: 2024-12-31 - Earliest claimed: 2018-04-11 - Assignees: Airnov, Inc. - Applicants: Airnov, Inc. - Inventors: Dan-Ola Svensson; Sebastien Ohl; Valere Logel - Web page: https://patentgrep.com/patent/US12180354B2 ## CPC - C08L 23/12: Polypropene - B01D 53/28: Selection of materials for use as drying agents - B01J 20/261: {obtained by reactions only involving carbon to carbon unsaturated bonds (macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds per se C08F)} - B01J 20/28026: {Particles within, immobilised, dispersed, entrapped in or on a matrix, e.g. a resin} - B01J 2220/445: comprising a mixture of polymers - B01J 2220/46: Materials comprising a mixture of inorganic and organic materials (materials coated or impregnated on a carrier B01J20/32) - B65D 81/266: {for absorbing gases, e.g. oxygen absorbers or desiccants (B65D51/244, B65D51/30 take precedence)} - C08K 3/36: Silica - C08K 5/0016: {Plasticisers} - C08K 5/20: Carboxylic acid amides - C08L: COMPOSITIONS OF MACROMOLECULAR COMPOUNDS (compositions based on polymerisable monomers C08F, C08G; artificial filaments or fibres D01F; textile treating compositions D06) - B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28) - B01J: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS - B65D: CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES - C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09) ## Abstract A polymer composition including a thermoplastic base polymer, and an inorganic desiccant material, selected from the group consisting of molecular sieves, zeolites, silica gel, clay, hydrate salts, metal oxides and mixtures thereof, and an additive, as well as methods of producing the polymer composition and an article of manufacture of the polymer composition. ## Claims ### Claim 1 A polymer composition comprising: a thermoplastic base polymer, an inorganic desiccant material, and an additive; wherein the additive consists of a polyether block amide, and wherein the inorganic desiccant material is present in an amount of 50 wt % or more. ### Claim 2 (depends on 1) The composition of claim 1, wherein the thermoplastic base polymer consists of a polyolefin polymer. ### Claim 3 (depends on 1) The composition of claim 1, wherein the inorganic desiccant is selected from the group consisting of molecular sieves, zeolites, silica gel, clay, hydrate salts, metal oxides and mixtures thereof. ### Claim 4 (depends on 3) The composition of claim 3, wherein the inorganic desiccant is selected from the group consisting of molecular sieves, silica gel and mixtures thereof. ### Claim 5 (depends on 1) The composition of claim 1, wherein the additive is selected from the group consisting of a hydrophilic polyether block amide, a hydrophobic polyether block amide and mixtures thereof. ### Claim 6 (depends on 1) The composition of claim 1, wherein the inorganic desiccant material is present in an amount of 60 wt % or more. ### Claim 7 (depends on 1) The composition of claim 1, wherein the thermoplastic base polymer is present in an amount of 1-49 wt %, the inorganic desiccant material is present in an amount of 50-85 wt %, and the additive is present in an amount of 1-49 wt %. ### Claim 8 (depends on 1) The composition of claim 1, wherein the composition further comprises at least one additional component selected from the group consisting of plasticizers, stabilizers, lubricators, coloring agents, and mixtures thereof. ### Claim 9 (depends on 1) An article of manufacture comprising the composition of claim 1. ### Claim 10 (depends on 9) The article of manufacture of claim 9, wherein the article is a molded article. ### Claim 11 (depends on 1) A medical or pharmaceutical packaging comprising the composition of claim 1. ### Claim 12 (depends on 1) A method of producing the polymer composition of claim 1 selected from the group consisting of: i) heating the base polymer above its melting point to produce a molten state; blending the inorganic desiccant material and the additive into the base polymer to uniformity to produce an entrained polymer mixture; ii) blending to uniformity the inorganic desiccant material, base polymer, and additive below the melting points thereof; heating the inorganic desiccant material, base polymer, and additive above the melting point of one or more of the base polymer and additive to produce an entrained polymer mixture in a molten state; iii) heating the base polymer above its melting point to produce a molten state; blending the additive into the base polymer; blending the inorganic desiccant material into the base polymer and the additive to form an entrained polymer mixture; and iv) blending the additive and base polymer below the melting points thereof; blending the inorganic desiccant material into the base polymer and additive to uniformity; heating the additive, base polymer and inorganic desiccant material above the melting point of at least one of the additive or base polymer, to produce an entrained polymer mixture in a molten state. ### Claim 13 (depends on 1) The composition of claim 1 wherein the thermoplastic base polymer is a polypropylene polymer.